List of Famous people who died at 91

Maurice Edmond Müller was a Swiss orthopedic surgeon who was instrumental in the development of internal fixation techniques to treat bone fractures and who also significantly advanced the development of the hip prostheses. For his work in these areas he has been honored with numerous awards. On 24 August 2002, the International Society of Orthopaedic Surgery and Traumatology (SICOT) named him the "Orthopedic Surgeon of the Century" at a congress in San Diego.

Mirko Ellis was a Swiss-Italian film, stage and television actor.

Roque Cordero was a Panamanian composer.

Hans-Werner Janssen was an American conductor of classical music, and composer of classical music and film scores. He was the first New York born conductor to lead the New York Philharmonic. For his film work he was nominated for six Academy Awards.

Adriana Pincherle was an Italian painter.

Sir Harry Raymond Pitt FRS was a British mathematician.